export function formatTime(){
  const date = new Date();
  const year = date.getFullYear();
  // 月份和日期从0开始，需要+1，且不足两位补0
  const month = String(date.getMonth() + 1).padStart(2, '0');
  const day = String(date.getDate()).padStart(2, '0');
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  const seconds = String(date.getSeconds()).padStart(2, '0');
  // 拼接成目标格式
  return`${year}:${month}:${day} ${hours}:${minutes}:${seconds}`;
};
